ShieldBreak Zero-Day PoC Claims Microsoft Defender Patch Bypass With SYSTEM Access

The security researcher going by the name Chaotic Eclipse aka INFINITE NIGHTMARE, MSNightmare, and Nightmare-Eclipse has released a proof-of-concept PoC for a new Microsoft zero-day called ShieldBreak. The vulnerability, rooted in Microsoft Defender for Windows, demonstrates a patch bypass for...

Windows Defender <= 1.1.26050.11 Elevation of Privilege (RoguePlanet) (CVE-2026-50656)

The Malware Protection Engine version of Microsoft Windows Defender installed on the remote Windows host is prior to or equal to 1.1.26050.11. It is, therefore, affected by an elevation of privilege vulnerability: - Improper link resolution before file access 'link following' in Microsoft Defende...

KLA91102 PE vulnerability in Microsoft System Center

Privilege escalation vulnerability was found in Microsoft System Center. Malicious users can exploit this vulnerability to gain privileges. Original advisories CVE-2026-50656 Exploitation Public exploits exist for this vulnerability. CVE list CVE-2026-50656 high KB list Solution Install necessary...